The Stroijirny Trinec company, which means “Machine factory” in the Czech language, is located in the city Trinec. I examined the certification of a number of welding procedures and welders qualifications in base-material group II. The qualifications are performed under the authorization of DNV Certification BV. Barendrecht in The Netherlands. LAB Verduyn BV. has an agreement for the examination of these procedures and welders qualifications (see certification (PDF, Dutch).